I have to chime in here, too. Charles, to be precise, the counter would have to be displayed, as well. However, I think that would be a monstrously long dtring, which I would argue could detroy the aesthetics of the layout. Furthermore, It clearly states 'Using URL'.
Then, how about the l33t being applied before the password is being generated. Would we want to display the input string after, or before l33t is applied ?
Needless to say, I am not in favor of doing it this way, either. Documenting the method in the help, as well as the FAQ section should be plenty. May be we could create a little sample script in these sections to show how the hash input is being put together.